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| Brand | HanHe |
|---|---|
| Origin | Shandong, China |
| Model | H-L1900 |
| Spectral Range | 190–1100 nm |
| Spectral Bandwidth | 2 nm |
| Wavelength Accuracy | ±0.8 nm |
| Wavelength Repeatability | ≤0.2 nm |
| Photometric Accuracy | ±0.3%T (0–100%T), ±0.002 Abs (0–0.5 Abs), ±0.004 Abs (0.5–1.0 Abs) |
| Baseline Drift | ±0.002 A/h |
| Baseline Flatness | ±0.002 A |
| Stray Light | ≤0.1%T |
| Photometric Repeatability | ≤0.15%T (0–100%T), ≤0.001 Abs (0–0.5 Abs), ≤0.002 Abs (0.5–1.0 Abs) |
| Detector | Imported Silicon Photodiode |
| Light Sources | Long-life Deuterium Lamp & Tungsten Halogen Lamp |
| Display | 128×64 Dot-Matrix LCD |
| Data Interface | USB Port |
| Dimensions | 460 × 380 × 180 mm |
| Weight | 18 kg |
| Brand | JU CHUANG ENVIRONMENTAL |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Instrument Type | Domestic |
| Model | UV-759CRT |
| Optical Design | Single-beam |
| Detector | CMOS array |
| Wavelength Range | 190–1100 nm |
| Wavelength Accuracy | ±0.3 nm |
| Wavelength Repeatability | 0.1 nm |
| Spectral Bandwidth | 1.8 nm |
| Stray Light | ≤0.05% T at 220 nm and 360 nm |
| Photometric Accuracy | ±0.003% T |
| Photometric Repeatability | 0.001% T |
| Absorbance Range | –0.30 to 3.00 A |
| Transmittance Range | 0.0–200.0% T |
| Concentration Range | 0–1999 units |
| Baseline Flatness | ±0.001 A |
| Stability | ±0.0005 A/h at 500 nm |
| Interface | USB (RS-232 emulation) |
| Display | 128×64 graphic LCD |
| Data Storage | 200 calibration curves + 200 measurement sets |
| Software Support | UV-759CRT dedicated analysis software |
| Brand | HanHe |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | H-L72 Series |
| Spectral Range | 350–1050 nm |
| Spectral Bandwidth | 6 nm |
| Wavelength Accuracy | ±2 nm |
| Wavelength Repeatability | ≤1 nm |
| Photometric Accuracy | Contact Technical Support |
| Baseline Drift | See Detailed Specifications |
| Baseline Flatness | Contact Technical Support |
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